进气管结构对电喷汽油机排放的影响

Effect of Intake Manifolds Configuration on Emissions of MPI Gasoline Engine

采用两种不同结构的进气管进行台架试验,研究进气管结构对电喷汽油机排放的影响。试验结果表明,在冷起动工况,容积较小的进气管的排放量低于容积较大的。

Two types of intake manifolds were used via engine test to investigate the effect of intake manifolds configuration on emissions. Experimental results showed that under cold start the smaller surge volume intake manifolds produced less emissions than the larger surge volume one (the original one), and under steady state operating conditions the smaller surge volume intake manifolds produced more emissions than the larger surge volume one.